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Aetiology

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

Authoring team

Non-infectious causes include:

  • erythema multiforme
  • Stevens-Johnson syndrome
  • lichen planus
  • Behcet's disease
  • vulval malignancy
  • chemical or physical trauma

Infectious causes include:

  • herpes simplex
  • syphilis - primary or secondary
  • granuloma inguinale
  • lymphogranuloma venereum
  • zoster
  • scabies
  • pediculosis pubis

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